145745492 has 6 divisors (see below), whose sum is σ = 255054618. Its totient is φ = 72872744.

The previous prime is 145745459. The next prime is 145745513. The reversal of 145745492 is 294547541.

It can be written as a sum of positive squares in only one way, i.e., 111218116 + 34527376 = 10546^2 + 5876^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18218183 + ... + 18218190.

It is an arithmetic number, because the mean of its divisors is an integer number (42509103).

Almost surely, 2^145745492 is an apocalyptic number.

It is an amenable number.

145745492 is a deficient number, since it is larger than the sum of its proper divisors (109309126).

145745492 is a wasteful number, since it uses less digits than its factorization.

145745492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36436377 (or 36436375 counting only the distinct ones).

The product of its digits is 201600, while the sum is 41.

The square root of 145745492 is about 12072.5097639223. The cubic root of 145745492 is about 526.2575952549.

The spelling of 145745492 in words is "one hundred forty-five million, seven hundred forty-five thousand, four hundred ninety-two".