145331051 has 2 divisors, whose sum is σ = 145331052. Its totient is φ = 145331050.

The previous prime is 145331047. The next prime is 145331063. The reversal of 145331051 is 150133541.

145331051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (150133541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145331051 - 2² = 145331047 is a prime.

It is a super-2 number, since 2×145331051² = 42242228769529202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145337051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72665525 + 72665526.

It is an arithmetic number, because the mean of its divisors is an integer number (72665526).

Almost surely, 2^145331051 is an apocalyptic number.

145331051 is a deficient number, since it is larger than the sum of its proper divisors (1).

145331051 is an equidigital number, since it uses as much as digits as its factorization.

145331051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 145331051 is about 12055.3328863205. The cubic root of 145331051 is about 525.7583007196.

Adding to 145331051 its reverse (150133541), we get a palindrome (295464592).

The spelling of 145331051 in words is "one hundred forty-five million, three hundred thirty-one thousand, fifty-one".