145274530 has 8 divisors (see below), whose sum is σ = 261494172. Its totient is φ = 58109808.

The previous prime is 145274497. The next prime is 145274567. The reversal of 145274530 is 35472541.

It can be written as a sum of positive squares in 2 ways, for example, as 144312169 + 962361 = 12013^2 + 981^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×145274530² = 42209378133441800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145274492 and 145274501.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7263717 + ... + 7263736.

Almost surely, 2^145274530 is an apocalyptic number.

145274530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145274530 is a deficient number, since it is larger than the sum of its proper divisors (116219642).

145274530 is a wasteful number, since it uses less digits than its factorization.

145274530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14527460.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 145274530 is about 12052.9884261124. The cubic root of 145274530 is about 525.6901339653.

The spelling of 145274530 in words is "one hundred forty-five million, two hundred seventy-four thousand, five hundred thirty".