1535151040 has 56 divisors (see below), whose sum is σ = 3674863872. Its totient is φ = 610821120.

The previous prime is 1535151029. The next prime is 1535151049. The reversal of 1535151040 is 401515351.

It is a happy number.

It is a super-2 number, since 2×1535151040² = 4713377431226163200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1535150996 and 1535151014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1535151049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48562 + ... + 73678.

Almost surely, 2^1535151040 is an apocalyptic number.

1535151040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1535151040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1837431936).

1535151040 is an abundant number, since it is smaller than the sum of its proper divisors (2139712832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1535151040 is a wasteful number, since it uses less digits than its factorization.

1535151040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25325 (or 25315 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 1535151040 is about 39181.0035603990. The cubic root of 1535151040 is about 1153.5870455089.

Adding to 1535151040 its reverse (401515351), we get a palindrome (1936666391).

The spelling of 1535151040 in words is "one billion, five hundred thirty-five million, one hundred fifty-one thousand, forty".