1201615402 has 16 divisors (see below), whose sum is σ = 1964460960. Its totient is φ = 547908912.

The previous prime is 1201615361. The next prime is 1201615477. The reversal of 1201615402 is 2045161021.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276252 + ... + 280567.

It is an arithmetic number, because the mean of its divisors is an integer number (122778810).

Almost surely, 2^1201615402 is an apocalyptic number.

1201615402 is a deficient number, since it is larger than the sum of its proper divisors (762845558).

1201615402 is a wasteful number, since it uses less digits than its factorization.

1201615402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556917.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1201615402 is about 34664.3246292207. The cubic root of 1201615402 is about 1063.1351944789.

Adding to 1201615402 its reverse (2045161021), we get a palindrome (3246776423).

The spelling of 1201615402 in words is "one billion, two hundred one million, six hundred fifteen thousand, four hundred two".