145698730 has 16 divisors (see below), whose sum is σ = 266703840. Its totient is φ = 57291472.

The previous prime is 145698727. The next prime is 145698743. The reversal of 145698730 is 37896541.

It is a super-2 number, since 2×145698730² = 42456239847225800, which contains 22 as substring.

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, 122884 + ... + 124063.

It is an arithmetic number, because the mean of its divisors is an integer number (16668990).

Almost surely, 2^145698730 is an apocalyptic number.

145698730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145698730 is a deficient number, since it is larger than the sum of its proper divisors (121005110).

145698730 is a wasteful number, since it uses less digits than its factorization.

145698730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247013.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 145698730 is about 12070.5728944404. The cubic root of 145698730 is about 526.2013065155.

The spelling of 145698730 in words is "one hundred forty-five million, six hundred ninety-eight thousand, seven hundred thirty".