1554211542 has 48 divisors (see below), whose sum is σ = 3390448320. Its totient is φ = 474735456.

The previous prime is 1554211511. The next prime is 1554211577. The reversal of 1554211542 is 2451124551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135433 + ... + 146459.

It is an arithmetic number, because the mean of its divisors is an integer number (70634340).

Almost surely, 2^1554211542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1554211542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1695224160).

1554211542 is an abundant number, since it is smaller than the sum of its proper divisors (1836236778).

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

1554211542 is a wasteful number, since it uses less digits than its factorization.

1554211542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11197 (or 11184 counting only the distinct ones).

The product of its digits is 8000, while the sum is 30.

The square root of 1554211542 is about 39423.4897237675. The cubic root of 1554211542 is about 1158.3417502186.

The spelling of 1554211542 in words is "one billion, five hundred fifty-four million, two hundred eleven thousand, five hundred forty-two".