145951494457 has 4 divisors (see below), whose sum is σ = 153633152080. Its totient is φ = 138269836836.

The previous prime is 145951494431. The next prime is 145951494467. The reversal of 145951494457 is 754494159541.

145951494457 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 145951494457 - 2²³ = 145943105849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145951494467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3840828783 + ... + 3840828820.

It is an arithmetic number, because the mean of its divisors is an integer number (38408288020).

Almost surely, 2^145951494457 is an apocalyptic number.

It is an amenable number.

145951494457 is a deficient number, since it is larger than the sum of its proper divisors (7681657623).

145951494457 is an equidigital number, since it uses as much as digits as its factorization.

145951494457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7681657622.

The product of its digits is 18144000, while the sum is 58.

The spelling of 145951494457 in words is "one hundred forty-five billion, nine hundred fifty-one million, four hundred ninety-four thousand, four hundred fifty-seven".