145342137 has 8 divisors (see below), whose sum is σ = 193928704. Its totient is φ = 96825168.

The previous prime is 145342133. The next prime is 145342147. The reversal of 145342137 is 731243541.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145342137 - 2² = 145342133 is a prime.

It is a super-2 number, since 2×145342137² = 42248673575453538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145342133) 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, 12313 + ... + 21030.

It is an arithmetic number, because the mean of its divisors is an integer number (24241088).

Almost surely, 2^145342137 is an apocalyptic number.

It is an amenable number.

145342137 is a deficient number, since it is larger than the sum of its proper divisors (48586567).

145342137 is a wasteful number, since it uses less digits than its factorization.

145342137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34799.

The product of its digits is 10080, while the sum is 30.

The square root of 145342137 is about 12055.7926740634. The cubic root of 145342137 is about 525.7716688385.

Adding to 145342137 its reverse (731243541), we get a palindrome (876585678).

The spelling of 145342137 in words is "one hundred forty-five million, three hundred forty-two thousand, one hundred thirty-seven".