142545400 has 48 divisors (see below), whose sum is σ = 334565640. Its totient is φ = 56476800.

The previous prime is 142545367. The next prime is 142545413. The reversal of 142545400 is 4545241.

It is a happy number.

It is a super-2 number, since 2×142545400² = 40638382122320000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18070 + ... + 24730.

Almost surely, 2^142545400 is an apocalyptic number.

142545400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142545400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167282820).

142545400 is an abundant number, since it is smaller than the sum of its proper divisors (192020240).

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

142545400 is a wasteful number, since it uses less digits than its factorization.

142545400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6784 (or 6775 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 142545400 is about 11939.2378316206. The cubic root of 142545400 is about 522.3774275030.

The spelling of 142545400 in words is "one hundred forty-two million, five hundred forty-five thousand, four hundred".