145380042 has 16 divisors (see below), whose sum is σ = 323066880. Its totient is φ = 48459996.

The previous prime is 145380023. The next prime is 145380083. The reversal of 145380042 is 240083541.

It is a super-2 number, since 2×145380042² = 42270713223843528, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 145379988 and 145380015.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1346058 + ... + 1346165.

It is an arithmetic number, because the mean of its divisors is an integer number (20191680).

Almost surely, 2^145380042 is an apocalyptic number.

145380042 is an abundant number, since it is smaller than the sum of its proper divisors (177686838).

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

145380042 is a wasteful number, since it uses less digits than its factorization.

145380042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2692234 (or 2692228 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 145380042 is about 12057.3646374322. The cubic root of 145380042 is about 525.8173716729.

The spelling of 145380042 in words is "one hundred forty-five million, three hundred eighty thousand, forty-two".