102003951 has 16 divisors (see below), whose sum is σ = 163616000. Its totient is φ = 55219968.

The previous prime is 102003947. The next prime is 102003971. The reversal of 102003951 is 159300201.

It is not a de Polignac number, because 102003951 - 2² = 102003947 is a prime.

It is a super-2 number, since 2×102003951² = 20809612039220802, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102003901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127426 + ... + 128223.

It is an arithmetic number, because the mean of its divisors is an integer number (10226000).

Almost surely, 2^102003951 is an apocalyptic number.

102003951 is a deficient number, since it is larger than the sum of its proper divisors (61612049).

102003951 is a wasteful number, since it uses less digits than its factorization.

102003951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255678.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 102003951 is about 10099.7005401150. The cubic root of 102003951 is about 467.2389055586.

The spelling of 102003951 in words is "one hundred two million, three thousand, nine hundred fifty-one".