145860031451 has 4 divisors (see below), whose sum is σ = 146357847552. Its totient is φ = 145362215352.

The previous prime is 145860031417. The next prime is 145860031529. The reversal of 145860031451 is 154130068541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 154130068541 = 33851 ⋅4553191.

It is a cyclic number.

It is not a de Polignac number, because 145860031451 - 2¹⁰ = 145860030427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145860031351) 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, 248907611 + ... + 248908196.

It is an arithmetic number, because the mean of its divisors is an integer number (36589461888).

Almost surely, 2^145860031451 is an apocalyptic number.

145860031451 is a deficient number, since it is larger than the sum of its proper divisors (497816101).

145860031451 is an equidigital number, since it uses as much as digits as its factorization.

145860031451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497816100.

The product of its (nonzero) digits is 57600, while the sum is 38.

Adding to 145860031451 its reverse (154130068541), we get a palindrome (299990099992).

The spelling of 145860031451 in words is "one hundred forty-five billion, eight hundred sixty million, thirty-one thousand, four hundred fifty-one".