145723585353431 has 4 divisors (see below), whose sum is σ = 145723614033000. Its totient is φ = 145723556673864.

The previous prime is 145723585353427. The next prime is 145723585353461. The reversal of 145723585353431 is 134353585327541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145723585353431 - 2² = 145723585353427 is a prime.

It is a super-2 number, since 2×145723585353431² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145723585353461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4439936 + ... + 17639733.

It is an arithmetic number, because the mean of its divisors is an integer number (36430903508250).

Almost surely, 2^{145723585353431} is an apocalyptic number.

145723585353431 is a deficient number, since it is larger than the sum of its proper divisors (28679569).

145723585353431 is an equidigital number, since it uses as much as digits as its factorization.

145723585353431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28679568.

The product of its digits is 90720000, while the sum is 59.

The spelling of 145723585353431 in words is "one hundred forty-five trillion, seven hundred twenty-three billion, five hundred eighty-five million, three hundred fifty-three thousand, four hundred thirty-one".