730145136 has 40 divisors (see below), whose sum is σ = 2155667584. Its totient is φ = 208612800.

The previous prime is 730145113. The next prime is 730145153. The reversal of 730145136 is 631541037.

It is a super-2 number, since 2×730145136² = 1066223839248916992, which contains 22 as substring.

It is a congruent number.

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, 1086190 + ... + 1086861.

Almost surely, 2^730145136 is an apocalyptic number.

It is an amenable number.

730145136 is an abundant number, since it is smaller than the sum of its proper divisors (1425522448).

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

730145136 is a wasteful number, since it uses less digits than its factorization.

730145136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2173069 (or 2173063 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 730145136 is about 27021.1979009074. The cubic root of 730145136 is about 900.4710028467.

The spelling of 730145136 in words is "seven hundred thirty million, one hundred forty-five thousand, one hundred thirty-six".