145401013 has 2 divisors, whose sum is σ = 145401014. Its totient is φ = 145401012.

The previous prime is 145400999. The next prime is 145401019. The reversal of 145401013 is 310104541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84217329 + 61183684 = 9177^2 + 7822^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145401013 is a prime.

It is a super-2 number, since 2×145401013² = 42282909162852338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145401019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72700506 + 72700507.

It is an arithmetic number, because the mean of its divisors is an integer number (72700507).

Almost surely, 2^145401013 is an apocalyptic number.

It is an amenable number.

145401013 is a deficient number, since it is larger than the sum of its proper divisors (1).

145401013 is an equidigital number, since it uses as much as digits as its factorization.

145401013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 145401013 is about 12058.2342405511. The cubic root of 145401013 is about 525.8426534236.

Adding to 145401013 its reverse (310104541), we get a palindrome (455505554).

The spelling of 145401013 in words is "one hundred forty-five million, four hundred one thousand, thirteen".