145137911 has 4 divisors (see below), whose sum is σ = 145165824. Its totient is φ = 145110000.

The previous prime is 145137893. The next prime is 145137919. The reversal of 145137911 is 119731541.

145137911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 145137911 - 2⁶ = 145137847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145137919) 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, 3590 + ... + 17411.

It is an arithmetic number, because the mean of its divisors is an integer number (36291456).

Almost surely, 2^145137911 is an apocalyptic number.

145137911 is a deficient number, since it is larger than the sum of its proper divisors (27913).

145137911 is an equidigital number, since it uses as much as digits as its factorization.

145137911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27912.

The product of its digits is 3780, while the sum is 32.

The square root of 145137911 is about 12047.3196604058. The cubic root of 145137911 is about 525.5252925312.

The spelling of 145137911 in words is "one hundred forty-five million, one hundred thirty-seven thousand, nine hundred eleven".