1542151020 has 48 divisors (see below), whose sum is σ = 4359962880. Its totient is φ = 407246016.

The previous prime is 1542151007. The next prime is 1542151057. The reversal of 1542151020 is 201512451.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118590 + ... + 130949.

It is an arithmetic number, because the mean of its divisors is an integer number (90832560).

Almost surely, 2^1542151020 is an apocalyptic number.

1542151020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1542151020 is an abundant number, since it is smaller than the sum of its proper divisors (2817811860).

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

1542151020 is a wasteful number, since it uses less digits than its factorization.

1542151020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249654 (or 249652 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 1542151020 is about 39270.2307097883. The cubic root of 1542151020 is about 1155.3377622016.

Adding to 1542151020 its reverse (201512451), we get a palindrome (1743663471).

The spelling of 1542151020 in words is "one billion, five hundred forty-two million, one hundred fifty-one thousand, twenty".