145627234091 has 4 divisors (see below), whose sum is σ = 145663454784. Its totient is φ = 145591013400.

The previous prime is 145627234057. The next prime is 145627234117. The reversal of 145627234091 is 190432726541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 190432726541 = 1583 ⋅120298627.

It is a cyclic number.

It is not a de Polignac number, because 145627234091 - 2¹⁴ = 145627217707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145627234021) 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, 18104315 + ... + 18112356.

It is an arithmetic number, because the mean of its divisors is an integer number (36415863696).

Almost surely, 2^145627234091 is an apocalyptic number.

145627234091 is a deficient number, since it is larger than the sum of its proper divisors (36220693).

145627234091 is an equidigital number, since it uses as much as digits as its factorization.

145627234091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36220692.

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 145627234091 in words is "one hundred forty-five billion, six hundred twenty-seven million, two hundred thirty-four thousand, ninety-one".