102978953 has 8 divisors (see below), whose sum is σ = 128389440. Its totient is φ = 80243280.

The previous prime is 102978943. The next prime is 102978961. The reversal of 102978953 is 359879201.

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

It is a cyclic number.

It is not a de Polignac number, because 102978953 - 2¹² = 102974857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102978943) 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, 668618 + ... + 668771.

It is an arithmetic number, because the mean of its divisors is an integer number (16048680).

Almost surely, 2^102978953 is an apocalyptic number.

It is an amenable number.

102978953 is a deficient number, since it is larger than the sum of its proper divisors (25410487).

102978953 is a wasteful number, since it uses less digits than its factorization.

102978953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337407.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 102978953 is about 10147.8546008504. The cubic root of 102978953 is about 468.7228841678.

The spelling of 102978953 in words is "one hundred two million, nine hundred seventy-eight thousand, nine hundred fifty-three".