101857402 has 4 divisors (see below), whose sum is σ = 152786106. Its totient is φ = 50928700.

The previous prime is 101857369. The next prime is 101857433. The reversal of 101857402 is 204758101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 61293241 + 40564161 = 7829^2 + 6369^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25464349 + ... + 25464352.

Almost surely, 2^101857402 is an apocalyptic number.

101857402 is a deficient number, since it is larger than the sum of its proper divisors (50928704).

101857402 is an equidigital number, since it uses as much as digits as its factorization.

101857402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50928703.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 101857402 is about 10092.4428162859. The cubic root of 101857402 is about 467.0150377188.

The spelling of 101857402 in words is "one hundred one million, eight hundred fifty-seven thousand, four hundred two".