145705951 has 2 divisors, whose sum is σ = 145705952. Its totient is φ = 145705950.

The previous prime is 145705913. The next prime is 145705961. The reversal of 145705951 is 159507541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145705951 - 2⁷ = 145705823 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145705951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145705961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72852975 + 72852976.

It is an arithmetic number, because the mean of its divisors is an integer number (72852976).

Almost surely, 2^145705951 is an apocalyptic number.

145705951 is a deficient number, since it is larger than the sum of its proper divisors (1).

145705951 is an equidigital number, since it uses as much as digits as its factorization.

145705951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31500, while the sum is 37.

The square root of 145705951 is about 12070.8720066116. The cubic root of 145705951 is about 526.2099994233.

The spelling of 145705951 in words is "one hundred forty-five million, seven hundred five thousand, nine hundred fifty-one".