2151473929 has 8 divisors (see below), whose sum is σ = 2351772000. Its totient is φ = 1951960800.

The previous prime is 2151473923. The next prime is 2151473939. The reversal of 2151473929 is 9293741512.

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 2151473929 - 2³ = 2151473921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2151473921) 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, 190492 + ... + 201469.

It is an arithmetic number, because the mean of its divisors is an integer number (293971500).

Almost surely, 2^2151473929 is an apocalyptic number.

It is an amenable number.

2151473929 is a deficient number, since it is larger than the sum of its proper divisors (200298071).

2151473929 is a wasteful number, since it uses less digits than its factorization.

2151473929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392471.

The product of its digits is 136080, while the sum is 43.

The square root of 2151473929 is about 46383.9835395797. The cubic root of 2151473929 is about 1290.9577505807.

The spelling of 2151473929 in words is "two billion, one hundred fifty-one million, four hundred seventy-three thousand, nine hundred twenty-nine".