121437542 has 8 divisors (see below), whose sum is σ = 182552832. Its totient is φ = 60586600.

The previous prime is 121437541. The next prime is 121437551. The reversal of 121437542 is 245734121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121437541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64934 + ... + 66777.

It is an arithmetic number, because the mean of its divisors is an integer number (22819104).

Almost surely, 2^121437542 is an apocalyptic number.

121437542 is a deficient number, since it is larger than the sum of its proper divisors (61115290).

121437542 is a wasteful number, since it uses less digits than its factorization.

121437542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132174.

The product of its digits is 6720, while the sum is 29.

The square root of 121437542 is about 11019.8703259158. The cubic root of 121437542 is about 495.2042037455.

The spelling of 121437542 in words is "one hundred twenty-one million, four hundred thirty-seven thousand, five hundred forty-two".