145911891459 has 32 divisors (see below), whose sum is σ = 198045679104. Its totient is φ = 95545313280.

The previous prime is 145911891451. The next prime is 145911891469. The reversal of 145911891459 is 954198119541.

It is not a de Polignac number, because 145911891459 - 2³ = 145911891451 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145911891399 and 145911891408.

It is not an unprimeable number, because it can be changed into a prime (145911891451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19263597 + ... + 19271169.

It is an arithmetic number, because the mean of its divisors is an integer number (6188927472).

Almost surely, 2^145911891459 is an apocalyptic number.

145911891459 is a deficient number, since it is larger than the sum of its proper divisors (52133787645).

145911891459 is a wasteful number, since it uses less digits than its factorization.

145911891459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8187.

The product of its digits is 2332800, while the sum is 57.

The spelling of 145911891459 in words is "one hundred forty-five billion, nine hundred eleven million, eight hundred ninety-one thousand, four hundred fifty-nine".