3136561402 has 8 divisors (see below), whose sum is σ = 5066753076. Its totient is φ = 1447643712.

The previous prime is 3136561399. The next prime is 3136561409. The reversal of 3136561402 is 2041656313.

It can be written as a sum of positive squares in 2 ways, for example, as 3117993921 + 18567481 = 55839^2 + 4309^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (3136561409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60318463 + ... + 60318514.

Almost surely, 2^3136561402 is an apocalyptic number.

3136561402 is a deficient number, since it is larger than the sum of its proper divisors (1930191674).

3136561402 is a wasteful number, since it uses less digits than its factorization.

3136561402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120636992.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 3136561402 is about 56005.0122935439. The cubic root of 3136561402 is about 1463.8096232510.

The spelling of 3136561402 in words is "three billion, one hundred thirty-six million, five hundred sixty-one thousand, four hundred two".