155869460 has 12 divisors (see below), whose sum is σ = 327325908. Its totient is φ = 62347776.

The previous prime is 155869429. The next prime is 155869463. The reversal of 155869460 is 64968551.

It can be written as a sum of positive squares in 2 ways, for example, as 72658576 + 83210884 = 8524^2 + 9122^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155869463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3896717 + ... + 3896756.

It is an arithmetic number, because the mean of its divisors is an integer number (27277159).

Almost surely, 2^155869460 is an apocalyptic number.

155869460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155869460 is an abundant number, since it is smaller than the sum of its proper divisors (171456448).

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

155869460 is a wasteful number, since it uses less digits than its factorization.

155869460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7793482 (or 7793480 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 155869460 is about 12484.7691208128. The cubic root of 155869460 is about 538.1710644827.

Subtracting from 155869460 its reverse (64968551), we obtain a palindrome (90900909).

The spelling of 155869460 in words is "one hundred fifty-five million, eight hundred sixty-nine thousand, four hundred sixty".