145446357 has 24 divisors (see below), whose sum is σ = 226183296. Its totient is φ = 82893888.

The previous prime is 145446331. The next prime is 145446377. The reversal of 145446357 is 753644541.

It is a happy number.

It is not a de Polignac number, because 145446357 - 2¹² = 145442261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145446317) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66993 + ... + 69129.

It is an arithmetic number, because the mean of its divisors is an integer number (9424304).

Almost surely, 2^145446357 is an apocalyptic number.

It is an amenable number.

145446357 is a deficient number, since it is larger than the sum of its proper divisors (80736939).

145446357 is a wasteful number, since it uses less digits than its factorization.

145446357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2617 (or 2610 counting only the distinct ones).

The product of its digits is 201600, while the sum is 39.

The square root of 145446357 is about 12060.1143029409. The cubic root of 145446357 is about 525.8973099229.

The spelling of 145446357 in words is "one hundred forty-five million, four hundred forty-six thousand, three hundred fifty-seven".