145137611 has 4 divisors (see below), whose sum is σ = 147303912. Its totient is φ = 142971312.

The previous prime is 145137607. The next prime is 145137617. The reversal of 145137611 is 116731541.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 145137611 - 2² = 145137607 is a prime.

It is a super-2 number, since 2×145137611² = 42129852253574642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145137617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1083050 + ... + 1083183.

It is an arithmetic number, because the mean of its divisors is an integer number (36825978).

Almost surely, 2^145137611 is an apocalyptic number.

145137611 is a deficient number, since it is larger than the sum of its proper divisors (2166301).

145137611 is an equidigital number, since it uses as much as digits as its factorization.

145137611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2166300.

The product of its digits is 2520, while the sum is 29.

The square root of 145137611 is about 12047.3072094971. The cubic root of 145137611 is about 525.5249304441.

The spelling of 145137611 in words is "one hundred forty-five million, one hundred thirty-seven thousand, six hundred eleven".