145669743 has 6 divisors (see below), whose sum is σ = 210411864. Its totient is φ = 97113156.

The previous prime is 145669739. The next prime is 145669747. The reversal of 145669743 is 347966541.

145669743 is a `hidden beast` number, since 14 + 566 + 9 + 74 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (145669739) and next prime (145669747).

It is not a de Polignac number, because 145669743 - 2² = 145669739 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145669747) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8092755 + ... + 8092772.

It is an arithmetic number, because the mean of its divisors is an integer number (35068644).

Almost surely, 2^145669743 is an apocalyptic number.

145669743 is a deficient number, since it is larger than the sum of its proper divisors (64742121).

145669743 is a wasteful number, since it uses less digits than its factorization.

145669743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16185533 (or 16185530 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 145669743 is about 12069.3721046291. The cubic root of 145669743 is about 526.1664079983.

The spelling of 145669743 in words is "one hundred forty-five million, six hundred sixty-nine thousand, seven hundred forty-three".