1454138889 has 16 divisors (see below), whose sum is σ = 2216580480. Its totient is φ = 830655360.

The previous prime is 1454138797. The next prime is 1454138897. The reversal of 1454138889 is 9888314541.

It is not a de Polignac number, because 1454138889 - 2⁸ = 1454138633 is a prime.

It is a super-2 number, since 2×1454138889² = 4229039817004308642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1454138489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62869 + ... + 82829.

It is an arithmetic number, because the mean of its divisors is an integer number (138536280).

Almost surely, 2^1454138889 is an apocalyptic number.

It is an amenable number.

1454138889 is a deficient number, since it is larger than the sum of its proper divisors (762441591).

1454138889 is a wasteful number, since it uses less digits than its factorization.

1454138889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23440.

The product of its digits is 1105920, while the sum is 51.

The square root of 1454138889 is about 38133.1730780432. The cubic root of 1454138889 is about 1132.9270939544.

The spelling of 1454138889 in words is "one billion, four hundred fifty-four million, one hundred thirty-eight thousand, eight hundred eighty-nine".