1506721164 has 24 divisors (see below), whose sum is σ = 3786120240. Its totient is φ = 463606464.

The previous prime is 1506721133. The next prime is 1506721171. The reversal of 1506721164 is 4611276051.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4829079 + ... + 4829390.

It is an arithmetic number, because the mean of its divisors is an integer number (157755010).

Almost surely, 2^1506721164 is an apocalyptic number.

It is an amenable number.

1506721164 is an abundant number, since it is smaller than the sum of its proper divisors (2279399076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1506721164 is a wasteful number, since it uses less digits than its factorization.

1506721164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9658489 (or 9658487 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 1506721164 is about 38816.5063342903. The cubic root of 1506721164 is about 1146.4214312782.

The spelling of 1506721164 in words is "one billion, five hundred six million, seven hundred twenty-one thousand, one hundred sixty-four".