145019292 has 24 divisors (see below), whose sum is σ = 369140352. Its totient is φ = 43945200.

The previous prime is 145019291. The next prime is 145019297. The reversal of 145019292 is 292910541.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145019291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 549184 + ... + 549447.

It is an arithmetic number, because the mean of its divisors is an integer number (15380848).

Almost surely, 2^145019292 is an apocalyptic number.

145019292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145019292 is an abundant number, since it is smaller than the sum of its proper divisors (224121060).

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

145019292 is a wasteful number, since it uses less digits than its factorization.

145019292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098649 (or 1098647 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 145019292 is about 12042.3956088479. The cubic root of 145019292 is about 525.3820855763.

The spelling of 145019292 in words is "one hundred forty-five million, nineteen thousand, two hundred ninety-two".