1542115002 has 16 divisors (see below), whose sum is σ = 3085142112. Its totient is φ = 513886320.

The previous prime is 1542114941. The next prime is 1542115009. The reversal of 1542115002 is 2005112451.

It is a self number, because there is not a number n which added to its sum of digits gives 1542115002.

It is not an unprimeable number, because it can be changed into a prime (1542115009) 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, 14949 + ... + 57512.

It is an arithmetic number, because the mean of its divisors is an integer number (192821382).

Almost surely, 2^1542115002 is an apocalyptic number.

1542115002 is an abundant number, since it is smaller than the sum of its proper divisors (1543027110).

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

1542115002 is a wasteful number, since it uses less digits than its factorization.

1542115002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76013.

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

The square root of 1542115002 is about 39269.7721154580. The cubic root of 1542115002 is about 1155.3287675616.

Adding to 1542115002 its reverse (2005112451), we get a palindrome (3547227453).

The spelling of 1542115002 in words is "one billion, five hundred forty-two million, one hundred fifteen thousand, two".