142154421100 has 18 divisors (see below), whose sum is σ = 308475094004. Its totient is φ = 56861768400.

The previous prime is 142154421091. The next prime is 142154421113. The reversal of 142154421100 is 1124451241.

It is a super-2 number, since 2×142154421100² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 710772006 + ... + 710772205.

Almost surely, 2^142154421100 is an apocalyptic number.

142154421100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142154421100 is an abundant number, since it is smaller than the sum of its proper divisors (166320672904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142154421100 is a wasteful number, since it uses less digits than its factorization.

142154421100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421544225 (or 1421544218 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

Adding to 142154421100 its reverse (1124451241), we get a palindrome (143278872341).

The spelling of 142154421100 in words is "one hundred forty-two billion, one hundred fifty-four million, four hundred twenty-one thousand, one hundred".