1254421542 has 32 divisors (see below), whose sum is σ = 2800575360. Its totient is φ = 371286720.

The previous prime is 1254421429. The next prime is 1254421559. The reversal of 1254421542 is 2451244521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218167 + ... + 223842.

It is an arithmetic number, because the mean of its divisors is an integer number (87517980).

Almost surely, 2^1254421542 is an apocalyptic number.

1254421542 is an abundant number, since it is smaller than the sum of its proper divisors (1546153818).

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

1254421542 is a wasteful number, since it uses less digits than its factorization.

1254421542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442068.

The product of its digits is 12800, while the sum is 30.

The square root of 1254421542 is about 35417.8139076934. The cubic root of 1254421542 is about 1078.4859735070.

The spelling of 1254421542 in words is "one billion, two hundred fifty-four million, four hundred twenty-one thousand, five hundred forty-two".