145292461 has 2 divisors, whose sum is σ = 145292462. Its totient is φ = 145292460.

The previous prime is 145292437. The next prime is 145292467. The reversal of 145292461 is 164292541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123343236 + 21949225 = 11106^2 + 4685^2 .

It is a cyclic number.

It is not a de Polignac number, because 145292461 - 2⁵ = 145292429 is a prime.

It is a super-2 number, since 2×145292461² = 42219798446873042, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145292467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72646230 + 72646231.

It is an arithmetic number, because the mean of its divisors is an integer number (72646231).

Almost surely, 2^145292461 is an apocalyptic number.

It is an amenable number.

145292461 is a deficient number, since it is larger than the sum of its proper divisors (1).

145292461 is an equidigital number, since it uses as much as digits as its factorization.

145292461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 34.

The square root of 145292461 is about 12053.7322435833. The cubic root of 145292461 is about 525.7117614362.

The spelling of 145292461 in words is "one hundred forty-five million, two hundred ninety-two thousand, four hundred sixty-one".