102450542 has 4 divisors (see below), whose sum is σ = 153675816. Its totient is φ = 51225270.

The previous prime is 102450503. The next prime is 102450547. The reversal of 102450542 is 245054201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×102450542² = 20992227112187528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102450547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25612634 + ... + 25612637.

It is an arithmetic number, because the mean of its divisors is an integer number (38418954).

Almost surely, 2^102450542 is an apocalyptic number.

102450542 is a deficient number, since it is larger than the sum of its proper divisors (51225274).

102450542 is an equidigital number, since it uses as much as digits as its factorization.

102450542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51225273.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 102450542 is about 10121.7855144238. The cubic root of 102450542 is about 467.9197971749.

The spelling of 102450542 in words is "one hundred two million, four hundred fifty thousand, five hundred forty-two".