1254212542 has 16 divisors (see below), whose sum is σ = 2052900864. Its totient is φ = 569943000.

The previous prime is 1254212537. The next prime is 1254212543. The reversal of 1254212542 is 2452124521.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1254212542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1254212543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133417 + ... + 142507.

It is an arithmetic number, because the mean of its divisors is an integer number (128306304).

Almost surely, 2^1254212542 is an apocalyptic number.

1254212542 is a deficient number, since it is larger than the sum of its proper divisors (798688322).

1254212542 is a wasteful number, since it uses less digits than its factorization.

1254212542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15375.

The product of its digits is 6400, while the sum is 28.

The square root of 1254212542 is about 35414.8632921264. The cubic root of 1254212542 is about 1078.4260744273.

The spelling of 1254212542 in words is "one billion, two hundred fifty-four million, two hundred twelve thousand, five hundred forty-two".