145125514 has 4 divisors (see below), whose sum is σ = 217688274. Its totient is φ = 72562756.

The previous prime is 145125499. The next prime is 145125517. The reversal of 145125514 is 415521541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 113955625 + 31169889 = 10675^2 + 5583^2 .

It is a super-2 number, since 2×145125514² = 42122829627528392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145125517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36281377 + ... + 36281380.

Almost surely, 2^145125514 is an apocalyptic number.

145125514 is a deficient number, since it is larger than the sum of its proper divisors (72562760).

145125514 is an equidigital number, since it uses as much as digits as its factorization.

145125514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72562759.

The product of its digits is 4000, while the sum is 28.

The square root of 145125514 is about 12046.8051366327. The cubic root of 145125514 is about 525.5103294695.

The spelling of 145125514 in words is "one hundred forty-five million, one hundred twenty-five thousand, five hundred fourteen".