100781402 has 8 divisors (see below), whose sum is σ = 151497216. Its totient is φ = 50282332.

The previous prime is 100781393. The next prime is 100781411. The reversal of 100781402 is 204187001.

It is an interprime number because it is at equal distance from previous prime (100781393) and next prime (100781411).

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53018 + ... + 54885.

It is an arithmetic number, because the mean of its divisors is an integer number (18937152).

Almost surely, 2^100781402 is an apocalyptic number.

100781402 is a deficient number, since it is larger than the sum of its proper divisors (50715814).

100781402 is a wasteful number, since it uses less digits than its factorization.

100781402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108372.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 100781402 is about 10038.9940731131. The cubic root of 100781402 is about 465.3647302227.

The spelling of 100781402 in words is "one hundred million, seven hundred eighty-one thousand, four hundred two".